Which statements are true about moving the compass around the wire? check all that apply. with no current, the compass needle will not move. if the light bulb is on, the compass needle will move. if the circuit is on, compass needle movement will indicate a dead battery. if current is flowing, the compass needle will not move unless the compass is touching the wire. changing the battery terminals will change the current flow and the compass will point differently.

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force